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Android Notification 使用

Android Notification 使用

作者: helloKai | 来源:发表于2016-06-26 13:48 被阅读286次

    http://developer.android.com/training/notify-user/build-notification.html

    1. 创建Notification
    NotificationCompat.Builder mBuilder = (NotificationCompat.Builder) new NotificationCompat.Builder(this)
    .setSmallIcon(R.mipmap.ic_launcher)
    .setContentTitle("My notification")
    .setContentText("hello world!");
    
    1. 对Notification添加Action
    Intent resultIntent = newIntent(this,ResultActivity.class);
    PendingIntent resultPendingIntent = PendingIntent.getActivity(
            this,                
            0,                
            resultIntent,PendingIntent.FLAG_UPDATE_CURRENT);
    //设置点击行为,和Notification相关联起来
    mBuilder.setContentIntent(resultPendingIntent);
    
    1. 发布一个Notification
    //设置ID为001?
    int mNotificationId = 001;
    NotificationManager mNotifyMgr = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    //要在setContentIntent之后完成
    mNotifyMgr.notify(mNotificationId,mBuilder.build());
    
    1. 设置一个带有返回栈的Intent,不会返回到MainActivity中
    <activity    
            android:name=".ResultActivity"
            android:parentActivityName=".MainActivity">    
            <meta-data        
                android:name="android.support.PARENT_ACTIVITY"        
                android:value=".MainActivity" />
    </activity>
    

    再设置Intent

    Intent resultIntent = new Intent(this,ResultActivity.class);
    TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
    //添加到返回栈中
    stackBuilder.addParentStack(ResultActivity.class);
    //添加Intent到栈顶
    stackBuilder.addNextIntent(resultIntent);
    //获得带有整个返回栈的PendingIntent
    PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
    //Notification和Intent进行绑定
    mBuilder.setContentIntent(resultPendingIntent);
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    mNotificationManager.notify(id,mBuilder.build());
    
    1. 创建一个特定的PendingIntent,按back会返回到之前的MainActivity
      首先要在activity中添加两个属性
      android:taskAffinity
      android:excludeFromRecents代表是否将它从最近使用中移除
    android:taskAffinity=""
    android:excludeFromRecents="true"
    
    Intent notifyIntent = new Intent(Intent.makeMainActivity(new ComponentName(this, ResultActivity.class)));
    //将用来放置activity的task清空,然后再在task中启动
    notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
    PendingIntent notifyPendingIntent = PendingIntent.getActivity(
    this,
    0,
    notifyIntent,
    PendingIntent.FLAG_UPDATE_CURRENT
    );
    mBuilder.setContentIntent(notifyPendingIntent);
    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(id,mBuilder.build());
    
    1. 更新Notification内容只要知道id,再通过notify()即可
    //Modify a Notification,by calling NotificationManager.notify(ID,notification);
    int numMessages = 0;
    mBuilder.setContentText("3").setNumber(++numMessages);
    mNotificationManager.notify(id,mBuilder.build());
    
    1. 删除Notification有四种方法
      (1) 用户通过点击"Clear All"
      (2) 在设置Notification的时候setAutoCancel(true);
      (3) 通过调用cancel();
      (4) 通过调用cancelAll();移除以前该应用的所有通知
    2. 设置Big View
      创建两个Action
    Intent dismissIntent = new Intent(this,PingService.class);
    dismissIntent.setAction("com.example.hellokai..ACTION_DISMISS");
    PendingIntent piDismiss = PendingIntent.getService(this,0,dismissIntent,0);
    Intent snoozeIntent = new Intent(this,PingService.class);
    snoozeIntent.setAction("com.example.hellokai.ACTION_SNOOZE");
    PendingIntent piSnooze = PendingIntent.getService(this,0,snoozeIntent,0);
    NotificationCompat.Builder builder =
    (NotificationCompat.Builder) new NotificationCompat.Builder(this)
    .setSmallIcon(R.mipmap.ic_launcher)
    .setContentTitle("hello")
    .setContentText("big view")
    .setDefaults(Notification.DEFAULT_ALL)
    .setStyle(new NotificationCompat.BigTextStyle().bigText("hello result"))
    .addAction(R.mipmap.ic_launcher,"dismiss",piDismiss)
    .addAction(R.mipmap.ic_launcher,"snooze",piSnooze);
    NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    manager.notify(id,builder.build());
    

    9.通知设置进度条

    final NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    new Thread(
        new Runnable() {
            @Override
            public void run() {
                int incr;
                for(incr = 0;incr <= 100;incr+=5) {                                           
                    mBuilder.setProgress(100,incr,false); 
                    manager.notify(id,mBuilder.build());
                    try{
                         Thread.sleep(1*1000);
                    }catch(InterruptedException e){
                         e.printStackTrace();                    
                    }                
                }                
                //结束之后要重新更新为0,false表示没有进图条动画,true表示有
                mBuilder.setContentText("download complete").setProgress(0,0,false);                                                   
                manager.notify(id,mBuilder.build());            
           }        
    }).start();
    

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      网友评论

      • 乘风破浪的程序员:楼主,您知道原因么? :pray:
        helloKai:@hante 我不太清楚具体的原因,我查了一下相关问题,好多都说是和bitmap的设置过大有关系,http://stackoverflow.com/questions/7988018/custom-notification-java-lang-runtimeexception-bad-array-lengths,看看这个能不能对你有所帮助。
        helloKai:@hante 相关报错代码可以贴一下吗?
      • 乘风破浪的程序员:楼主,我用的NotificationCompat.Builder,但发生了如下错误:

        Fatal Exception: java.lang.RuntimeException: bad array lengths
        at android.os.Parcel.readIntArray(Parcel.java:926)
        at android.app.INotificationManager$Stub$Proxy.enqueueNotificationWithTag(INotificationManager.java:777)
        at android.app.NotificationManager.notify(NotificationManager.java:272)
        at android.app.NotificationManager.notify(NotificationManager.java:211)
        at cc.netpas.android_firewall.service.BackgroundDaemon$3.run(BackgroundDaemon.java:297)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:158)
        at android.os.HandlerThread.run(HandlerThread.java:61)

      本文标题:Android Notification 使用

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